Mesh-clearer for bolts



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UNITED STATES PATENT Orrice.

WILSON H. GEORGE, OF DAYTON, OHIO.

MESH-CLEARER FOR BOLTS.

SPECIFIGATION forming part of Letters Patent No. 390,359, dated October 2, 1888.

(No model.)

To all whom it may concern:

Be it known that I, WILSON H. GEORGE, a citizen of the United States, residing at Dayton, in the county ofMontgomery and State ofOhio, have invented certain new and useful Improvements in MeshOlearers for Bolts; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form a partof this specification.

My invention relates to improvements in a mesh-clearer for bolts.

The device is explained in connection with a middlings-purifier; but the same is adapted to jar bolting-cloths wherever used, as the function is the same under all circumstances that is, of communicating a rapid vibratory movement to said cloth.

The object of my invention is to jar a bolting-cloth by striking the same rapidly by a series of balls actuated by a trip drawn over the teeth of a serrated bar, for the purpose of preventing the clogging of the said boltingcloth.

The several features of the invention will be fully hereinafter set forth.

I attain the object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of a middlingspurifier with a portion cut away to exhibit the interior. Fig. 2 is a View of the left end of the same. Fig. 3 is acentral longitudinal section of the vibrator. Fig. 4 is an inner view of the hinge of the vibrator.

Like letters designate like parts throughout the several views.

My device, as adapted to a middlings-purifier, is to take the place of a brush which is carried against the under side of the bolting-cloth by means of endless chains carried on sprocketwheels at both ends of the frame, and in the illustration I have only shown so much of the middlings-purifier as will serve my purpose.

A is the frame or case of the machine. On the posts at the ends are attached the bearings for the shafts of the sprocketwheels E E, and central in the machine is attached the ser= tions the greater the movement.

G is the driving-pulley attached to the shaft carrying the sprocket-wheels, and on these wheels are carried the endless chains B. To these chains are attached the blocks t,by rivets or otherwise, which form the base of the Vlbrators D. Near the top of the frame,on pivotal bearings, is suspended the bolting'eloth O in the usual manner, and to itis given a rapid reciprocating motion by suitable mechanism.

The vibrator is comprised of the blocks 5 and t, hinged section-plates e 6, bolt '1), spiral spring a, wire 12, and ball at, and the same is attached to the endless chains, as above specified, and is carried from left to right,with the balls or spheres in close proximity to the under side of the bolting-cloth, and the trip 1' of the k nocker engaging the teeth of the serrated bar. This trip is attached centrally to the block 5-, and as the same is depressed by the teeth of the serrated bar, thereby compressing the spiral spring 16, when a tooth is passed, the resiliency of said spring causes the ball to strike against the bolting-cloth and vibrate rapidly in connection therewith until a succeeding tooth is engaged by the said trip, and

the operation is repeated. The efiect of this operation is to clear the meshes of theboltingcloth, so that the ground material will pass unobstructedly through. The wire supporting the ball is secured by staples or otherwise to the block 8, and one or more coils are formed in the same to increase the vibratory action, so that the bail may strike the bolting-cloth repeatedly after each release of the trip. The bolt oserves to arrest the resiliency of the spring, and is also used to compress thespring, thereby giving as compressed a harder rebound. The balls or spheres may be made of rubber or other suitable material, and the wire on which they are suspended must be spring metal.

Having fully described my invention,what I claim, and desire to secure by Letters Patent, 1s-

1.. A knocker comprising hinged sections e 0, spiral spring u, block 8, with trip 1*, block t, spring n, and ball m, in combination with an endless chain, B, carried on sprocket-wheels, serrated bar 0, and bolting-cloth suspended immediately above said vibrator, substantially as set forth.

2. A knocker for bolting-machines, comprising'hinged sections'e a, spiral spring u, block 8, with trip r, block t, spring a, and ball {0 m, with suitable mechanism for intermittingly depressing the same, in combination with the endless chain B, upon which the aforesaid parts are supported, substantially as set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two 15 witnesses.

WILSON H. GEORGE. \Vitnesses:

B. PICKERING, J. B. SLoA'r. 

